Examine source code of Tagged-Bookmarks

{
  "manifest_version": 2,
  "name": "PDF metadata extractor",
  "version": "1.0",
  "description": "Save the metadata of your PDFs easily in a bookmark",
  "icons": {
    "48": "icons/border-48.png",
    "64": "icons/tags-icon.png"
  },
  "options_ui": {
    "page": "src/settings/options.html"
  },
  "background": {
    "scripts": [
      "node_modules/pdfjs-dist/build/pdf.js",
      "src/background-script.js"
    ],
    "persistent": true
  },
  "permissions": [
    "webRequest",
    "*://*/*",
    "storage",
    "bookmarks",
    "tabs"
  ],
  "browser_action": {
    "default_icon": "icons/tags-icon.png",
    "default_title": "PDF metadata extractor",
    "default_popup": "src/settings/popup_settings.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "addon@bookmarkers.com"
    }
  }
}